Grape plant named &#39;Enchantment&#39;

ABSTRACT

Description and specifications of a new and distinct wine grape cultivar which originated from a hand-pollinated cross of Ark. 1628 (non-patented, non-released breeding genotype; female parent) x Ark. 1481 (non-patented, non-released breeding genotype; male parent). This new wine grape cultivar can be distinguished by its quality juice attributes for wine production with hardy and productive grapevines adapted Arkansas and the Mid-South of the United States.

Latin name: Vitis L. hybrid.

Varietal denomination: ‘Enchantment’.

BACKGROUND

The new and distinct cultivar of red wine grape named ‘Enchantment’ isdescribed herein. The new cultivar originated from a hand-pollinatedcross of ‘Ark. 1628’ (female parent) and ‘Ark. 1481’ (male parent) madein 1990. The seedlings fruited in the summer of 1993 in a vineyard nearClarksville, Ark. and one was selected for its potential as a red winegrape for utilization in Arkansas and the Mid-South of the UnitedStates. The fruit grows in medium-sized clusters on hardy andconsistently productive plants and produces deep-colored juice ideal forwine production.

SUMMARY OF THE INVENTION

The new and distinct cultivar of grapevine originated from ahand-pollinated cross of ‘Ark. 1628’ (non-patented, non-releasedbreeding genotype; female parent) x ‘Ark. 1481’ (non-patented,non-released breeding genotype; male parent) made in 1990 nearClarksville, Ark. The seeds resulting from this controlled hybridizationwere germinated in a greenhouse during the winter of 1990-91. Resultingseedlings were planted in the spring of 1991 in a vineyard nearClarksville, Ark. The seedlings fruited in the summer of 1993 and oneseedling, designated Arkansas Selection 2467, was selected for goodproductivity and its potential for red wine production along with goodadaptation to Arkansas and Mid-South of the United States.

During late 1993 and early 1994, the original plant selection waspropagated asexually at the above-noted location, by rooting hardwoodcuttings and a test planting of three vines was established. In allpropagations, hardwood cuttings were used and the selection rootedreadily from hardwood cuttings. All propagules (resulting plants) of thenew cultivar have been observed to be true to type in that during allasexual multiplication, the vegetative and fruit characteristics of theoriginal plant have been maintained. All vines planted from hardwoodcutting propagation fruited in the third season of growth in thevineyard after planting.

Vines of the new cultivar have medium-high, but not excessive, vigor,with semi-procumbent growth habit intermediate between V. vinifera andV. labrusca hybrids. It has produced well as own-rooted plants in alltesting and has not been evaluated on any rootstocks. Adaptation to theArkansas test site is very good as winter injury and heat damage werenot observed.

The health of the new cultivar is good. The new cultivar is moderatelyresistant to powdery mildew (Erysiphe necator Schw. (syns. Uncinulanecator (Schw.) Burr., E. tuckeri Berk., U. americana Howe, and U.spiralis Berk. & Curt; anamorph Oidium tuckeri Berk.), downy mildew(Plasmopora viticola Berl. & Tomi.), and anthrancnose (Elsinoe ampelina(d. By.) Sher), but susceptible to black rot (Guignardia bidwellii(Ell.) V. & R.). It is also susceptible to Pierce's disease (Xylellafastidiosa). Fungal diseases can be controlled by the use of availablefungicides.

The new cultivar average harvest date is 22 August. Yield averages 10.1kg/vine with average cluster weight of 178.3 g. Medium-sized clustersare compact, but not excessively tight. The berries are small (ca. 1.5g). ‘Enchantment’ is a teinturier grape with color in the flesh andjuice. Fruit cracking was not observed during evaluation in summerrainfall near maturity.

The flavor attributes for the new cultivar are reflective of commercialstandards for quality juice and wine. Wine quality of the new cultivaris comparable to ‘Cynthiana’ (not-patented). Soluble solids andtitratable acidity concentration of the juice at fruit maturity averages18.9% and 0.8%, respectively. Juice pH average is 3.4. The crush juiceyield is 4.9 kg of grapes for 3.8 L of juice. The primary anthocyaninpigment present in the wine is malvidin-3-glucoside. The wine from‘Enchantment’ has a deep, dark red color and a “cherry-like” aroma withflavors similar to ‘Petit Syrah’ (not-patented).

The new cultivar has been named ‘Enchantment’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs show typical specimens from 22 year-oldvines of the new cultivar in color as nearly true as it is reasonablypossible to make in a color illustration of this character.

FIG. 1 is a photograph showing typical cluster of healthy fruit, nearClarksville, Ark.

FIG. 2 is a photograph showing the leaf abaxial view, near Clarksville,Ark.

FIG. 3 is a photograph showing the leaf adaxial view, near Clarksville,Ark.

FIG. 4 is a photograph of the wine.

DETAILED DESCRIPTION OF THE NEW CULTIVAR

‘Enchantment’ differs from its female parent Ark. 1628 in that‘Enchantment’ has larger clusters, is more winter hardy, and is moreconsistent in producing adequate yield. ‘Enchantment’ differs from itmale parent Ark.1481 as it is more winter hardy, more disease resistant,and is more productive.

The following is a detailed description of the botanical and pomologicalcharacteristics of the subject grapevine. Color data are presented inRoyal Horticultural Society Colour Chart designations, 1986 version,second edition.

Where dimensions, sizes, colors and other characteristics are given, itis to be understood that such characteristics are approximations ofaverages set forth as accurately as practicable.

The descriptions reported herein are from specimens grown nearClarksville, Ark. Vines used for measurement were irrigated usingtrickle (drip) irrigation. Vines were fertilized annually in spring withNitrogen or complete fertilizers. No shoot or leaf thinning practiceswere conducted on the vines. The data collection was from vines thatwere 22 years old.

-   Vine:    -   -   Size.—medium. Evaluation vines grown on a 5 ft high,            single-wire trellis, bilateral cordon training system spaced            8 ft between vines occupy vine space fully.        -   Growth vigor.—medium vigor.        -   Density of foliage.—thick.        -   Productivity.—moderately productive. Yields average 22            lb/vine (10.1 kg/vine). The comparison wine grape cultivar            ‘Chambourcin’ had a yield of 22 lb/vine.        -   Rootstock.—none; vines tested were own-rooted vines.        -   Cold hardiness.—hardy to −17° C. (1° F.); potentially more            hardy as this was the coldest temperature experienced at the            test site.-   Shoots (current-season canes):    -   -   Color of shoots (current-season canes).—sun exposed side:            greyed-orange group 175-B; shaded side: yellow-green group            146-C; anthocyanin minimally present on shoot sides exposed            to direct sunlight.        -   Shoot attitude.—semi-procumbent.-   Canes (mature, dormant):    -   -   Color of mature, dormant cane.—base: brown group 200-D;            midpoint: greyed-orange group 165-B; terminal: greyed-orange            group 165-B; anthocyanin present on mature canes at base on            all sides and only on sun exposed sides of midpoint and            terminal portions of canes.        -   Texture of mature, dormant canes.—smooth.        -   Length of mature, dormant canes.—average 1.1 m with range of            0.8 to 1.5 m.        -   Diameter of mature, dormant cane.—base: 1.0 cm; midpoint:            0.8 cm; terminal: 0.6 cm.        -   Internode length of mature, dormant canes.—base: 5.2 cm;            midpoint: 6.0 cm; terminal: 4.4 cm.        -   Lenticels.—not present on mature canes. Cane maturity in the            fall extends to most of the cane length but not complete to            distal ends.-   Trunk:    -   -   Diameter at 30 cm above soil level.—5.1 cm.        -   Shape.—round.        -   Trunk straps.—present.        -   Surface texture.—rough.        -   Color.—inner bark color: brown group 200-C; outer bark            color: greyed green 197-A.-   Foliage:    -   -   Leaves.—.        -   Arrangement of mature leaves.—simple and alternate.        -   Shape of mature leaves.—pentagonal.        -   Number of lobes on mature leaves.—4-5.        -   Petiole sinus of mature leaves.—open, triangular.        -   Venation of mature leaves.—palmate.        -   Margin of mature leaves.—serrated with teeth shape of mature            leaves rounded and medium in size; teeth height: 3.4 mm;            teeth width: 5.6 mm.        -   Surface texture of mature leaves.—abaxial side: smooth;            adaxial side: smooth.        -   Dimensions of mature leaves.—length: 11.4 cm; width: 15.1            cm; thickness: 0.02 cm.        -   Pubescence on mature leaves.—abaxial side: none; adaxial            side: none.        -   Color of mature leaves.—base abaxial: green group 141-A;            base adaxial: yellow-green group 146-B; midpoint abaxial:            green group 141-A; midpoint adaxial: yellow-green group            146-B; terminal abaxial: green group 141-A; terminal            adaxial: yellow-green group 146-B.        -   Color of veins on mature leaves.—abaxial surface:            yellow-green group 141-D; adaxial surface: yellow-green            group 144-A; no anthocyanin on upper or lower surfaces of            leaves or on leaf veins.        -   Autumn coloration of mature leaves.—abaxial surface:            greyed-orange group 176-B; adaxial surface: grayed-purple            group 183-A.        -   Leaf pubescence on young leaves.—abaxial side: low; adaxial            side: low to none.        -   Color of young leaves.—base abaxial: yellow-green group            144-B; base adaxial: yellow-green group 144-B; midpoint            abaxial: yellow-green group 144-B; midpoint adaxial:            yellow-green group 144-B; terminal abaxial: yellow-green            group 144-B; terminal adaxial: yellow-green group 144-B;            anthocyanin minimally present on tips of young leaves.        -   Vein color of young leaves.—abaxial side: yellow-green group            144-B; adaxial side: yellow-green group 144-B.-   Petioles:    -   -   Color of mature petioles.—yellow-green group 146-D;            anthocyanin minimally present on mature petioles exposed to            sun.        -   Dimensions of mature petioles.—length: 8.3 cm; diameter: 0.3            cm.        -   Shape of mature petioles.—round.        -   Pubescence on mature petioles.—none.        -   Color of young petioles.—yellow-green group 144-B.-   Tendrils: Found on the 6th node.    -   -   Orientation.—intermittent.        -   Dimensions.—length: 10.1 cm; diameter: 0.2 cm.        -   Texture.—smooth.        -   Color of mature tendril.—grey group 201-A. Tendril forked            and mostly curled.-   Buds:    -   -   Number of buds on current, single-season cane.—14.        -   Dimensions of dormant buds.—length: 0.5 cm; width of dormant            buds: 0.3 cm.        -   Shape of dormant buds.—triangular.        -   Color of dormant buds.—greyed-orange group 173-A.        -   Texture of dormant buds.—smooth; bumpy where scales meet.        -   Bud break.—28 March.-   Disease resistance: Moderately resistant to powdery mildew, downy    mildew, and anthracnose, and susceptible to black rot. Susceptible    to Pierce's disease. Other disease susceptibilities not known.-   Flower:    -   -   Fragrance.—Similar to Vitis vinifera vines.        -   Sex.—hermaphrodite.        -   Bloom dates.—first bloom: 9 May; full bloom: 15 May.        -   Flowers per cluster.—519.        -   Inflorescence dimensions.—length: 8.6 cm; diameter: 4.1 cm.        -   Flower dimensions.—length: 0.4 cm; diameter: 0.7 cm.        -   Flower longevity.—moderate.        -   Flower shape.—roundish.-   Stamens:    -   -   Number.—4.        -   Color of filament.—yellow-orange group 15-A.-   Pistil:    -   -   Number.—1.        -   Length.—0.2 cm.        -   Color.—yellow-green group 144-A.-   Pollen:    -   -   Color.—yellow-orange group 15-A.        -   Amount.—moderately abundant.-   Petal:    -   -   Number.—6 fused petals, form calyptra (flower cap).        -   Color.—yellow-green group 144-A.-   Sepal: none.-   Pedicle:    -   -   Dimensions.—length: 0.5 cm; diameter: 0.1 cm.        -   Color.—red group 46-A.-   Fruit:    -   -   Maturity.—22 August.        -   Berry shape and cross section.—round.        -   Berry color.—skin: black group 202-A.        -   Berry flesh color.—very strong; greyed-purple group 187-C.        -   Berry dimensions.—diameter at equator: 1.4 cm; diameter at            base: 1.0 cm; diameter at apex: 1.0 cm; length: 1.3 cm.        -   Berry weight.—1.5 g. The comparison wine grape cultivar            ‘Chambourcin’ had an average berry weight of 1.4 g/berry.        -   Berry texture.—smooth.        -   Firmness.—Slightly firm; rupture force to penetrate berry            11.9 N.        -   Skin thickness.—0.04 cm.        -   Tenacity.—high.        -   Seeds.—yes. 2-3 developed/complete.        -   Brush length.—0.2 cm.        -   Juiciness.—very juicy.        -   Attachment.—strong, very good, difficult to remove grape            from pedicel at maturity.        -   Aroma.—none to mild. Herbaceous, slight blackberry.        -   Flavor.—blackberry, mulberry, dark cherry, bell pepper.-   Juice:    -   -   Color.—red group 53-B.        -   Soluble solids.—18.9%.        -   Titratable acidity.—0.8%.        -   pH.—3.4.-   Seed:    -   -   Number per berry.—2.        -   Seed dimensions.—length: 0.6 cm; width: 0.4 cm.        -   Weight.—0.04 g.        -   Color.—greyed-orange group 166-A.        -   Shape.—obovate.-   Cluster:    -   -   Weight.—178.3 g.        -   Cluster dimensions.—length: 16.8 cm; width: 10.9 cm.        -   Berries per cluster.—154. The comparison wine grape cultivar            ‘Chambourcin’ had an average of 79 berries per cluster.        -   Cluster per vine.—150. The comparison wine grape cultivar            ‘Chambourcin’ had an average 80 clusters/vine.        -   Cluster density.—medium.        -   Clusters per shoot.—2.4.        -   Peduncle length.—3.1 cm.-   Wine quality:    -   -   Flavor.—earthy, mildly vegetative; black pepper, anise.        -   Aroma.—fresh, “cherry-like”; mildly vegetative for non-aged            wine.        -   Color.—deep, dark red-purple.        -   Finish.—medium length, non-lingering.        -   Overall quality.—comparable to established regional            cultivars such as ‘Chambourcin’ or ‘Cynthiana.’.-   Use: Processing for red wine with improved vines particularly    adapted for Arkansas and the Mid-South of the United States.-   The cultivar: The most distinctive features of this cultivar are    vines with consistent productivity, teinturier grapes with juice    quality for red wine production, and plants with adaptation to    Arkansas and the Mid-South of the United States.

We claim:
 1. A new and distinct cultivar of grape plant named‘Enchantment’, substantially as illustrated and described.